Lawn Mower AGM Battery Group U1 12V 28ah 300CCA Rechargeable SLA Starting Garden Batteries for Tractors, Lawn and Riding Mowers, Compatible with Craftsman, Cub Cadet, and Toro

What It Is

This is a sealed, maintenance-free AGM (Absorbent Glass Mat) battery designed to start riding lawn mowers, garden tractors, and zero-turn mowers. It delivers 12V, 28 amp-hours, and 300 cold cranking amps (CCA), suitable for gas engines up to roughly 25 hp.

Fitment & Compatibility

• Group Size: U1 (standard for most riding mowers). Measure your battery tray: U1 dimensions are typically 7.7" L x 5.1" W x 6.2" H. Verify height with your hold-down bracket.
• Terminal Layout: Check terminal positions (positive left or right) and type (SAE post or L-terminal). This battery uses SAE posts, but may include adapters.
• Brand Fit: Compatible with Craftsman, Cub Cadet, Toro, John Deere, Husqvarna, and many others, but confirm your OEM battery is group U1 and 12V.
• CCA vs. OEM: 300 CCA is sufficient for most residential mowers. If your original battery is lower (e.g., 230 CCA), this upgrade works. If your mower specifies higher CCA (e.g., 350+), it may struggle in cold starts.
• What to check before buying: Measure your tray dimensions, note terminal orientation, and confirm your mower’s voltage (12V only). Check your owner’s manual for “U1” or “12V 28Ah” specs.

Key Things to Know

• No maintenance required: AGM is sealed, spill-proof, and can be mounted in any position (except upside down). No need to add water.
• Installation is straightforward: Disconnect negative first, swap cables, reconnect positive first. Use dielectric grease on terminals to prevent corrosion.
• Cold weather performance: 300 CCA is adequate down to about 0°F. For extreme cold, consider a higher CCA battery.
• Charging note: Use a charger compatible with AGM batteries (not a standard flooded battery charger on high amp mode). Trickle maintainers are fine.
• Lifespan: Expect 3–5 years with proper storage (keep charged over winter). AGM self-discharges slower than flooded batteries.

Should You Buy It

If your riding mower requires a group U1 battery and you want a reliable, maintenance-free upgrade from a flooded lead-acid battery at a fair price, this is a solid choice. It fits most popular brands and offers enough CCA for typical residential use. Best for owners who want a simple, drop-in replacement without worrying about water levels or acid leaks.